package kr.hkit.powerjava.chapter07;

public class CaculatorDemo {
	public static void main(String[] args) {
		Caculator calc = new Caculator();
		
		calc.setOperand(10, 20);
		
		calc.sum();
		calc.avg();
		
		System.out.println(calc);
		System.out.println(calc.toString());
	}
}
